What Is Acid Washing?
Acid washing is a deep-cleaning process that uses a diluted muriatic acid solution to strip away a thin layer of your pool’s surface, typically plaster or concrete. It’s one of the most effective ways to remove tough pool stains, including algae growth, calcium deposits, and mineral stains caused by hard water or metals.
The process targets areas where regular pool cleaning just doesn’t cut it, restoring your swimming pool to a cleaner, brighter, and more pristine condition. So, if your pool bottom, walls, or tile have lost their luster and you’ve tried scrubbing with little success, an acid wash might be the solution your pool needs.
When Does a Pool Need an Acid Wash?
Not sure if your Charleston pool needs an acid washing? Here are a few red flags:
- Stubborn stains on the pool surface that won’t lift with brushing
- Visible calcium or mineral deposits along pool tile or plaster
- Green pool appearance due to long-standing algae growth
- Faded or dingy surface even after regular cleaning
- The pool looks aged, neglected, or has sat with stagnant water for too long
If you notice any of these, an acid wash pool service could give your pool the reset it needs.
Benefits of Acid Washing
There’s a reason acid washing is a go-to service for neglected or heavily used pools. Here’s what makes it worth it:
- Restores Bright Surface Color: Brings back the crisp, clean white of your pool plaster.
- Removes Years of Buildup: Cuts through layers of mineral stains, dirt, and chlorine residue.
- Improves Aesthetic Instantly: You’ll see a dramatic aesthetic improvement, often making the pool look like new.
- Prepares for Resurfacing: A perfect prep step if you’re planning to resurface your pool in the future.
Why Choose Net Positive Pools for Filter Cleaning
Frequently Asked Questions
Can I acid wash my pool myself?
It’s not recommended. Muriatic acid is dangerous to handle, and improper application can damage your pool plaster. Let our pros handle the process safely.
How often should a pool be acid washed?
Typically, every 3–5 years, depending on usage, water chemistry, and staining severity. Overuse can wear down the pool’s surface, so it’s best done only when needed.
Will acid washing remove all pool stains?
Most, yes, especially mineral stains, algae, and chlorine stains. However, deep etching or old surface damage may need resurfacing afterward.
Is acid washing safe for all pools?
It’s ideal for concrete or plaster pools. If you have a vinyl liner or fiberglass pool, we’ll help you explore safer cleaning process options.
How long does it take to acid wash a pool?
Usually 1–2 days, including draining, washing, refilling, and balancing the pool water.
What’s the difference between acid washing and chlorine washing?
Chlorine washes are gentler and primarily used to address algae growth or biofilm. Acid washes are stronger and designed to remove mineral buildup and restore surfaces.
Will I need to re-balance the pool afterward?
Yes. After an acid wash, we’ll help adjust your water chemistry so it’s swim-ready and safe.
More Services
Weekly Maintenance
Keep your pool clean, balanced, and swim-ready all season long with our weekly maintenance service. Our experienced, background-checked technicians handle the essentials. With consistent care, you’ll enjoy crystal-clear water, longer-lasting equipment, and peace of mind knowing your pool is in expert hands every week.
Equipment & Repairs
From weekly maintenance and repairs to full equipment replacements, our experienced, background-checked technicians keep your pool running at its best using quality parts from top brands. We offer transparent pricing with no hidden fees and back all equipment we sell with a three-year warranty on parts and labor.
Pool Inspection
Get peace of mind with a comprehensive pool inspection that evaluates equipment, structure, and overall condition. Whether you’re buying a home or maintaining your investment, we identify potential issues early and provide clear recommendations to keep your pool in top shape.
Green to Clean
If your pool has turned green or black with algae, we can bring it back to life. We treat, pump, and clean even the worst cases, then carefully balance the water chemistry so it’s safe, clear, and ready to swim in again.
Pool Heaters
Extend your swim season with a professionally installed pool heater designed for performance and efficiency. We handle everything from new heater installations to troubleshooting and repairs, ensuring consistent water temperature and reliable operation year-round.
Salt Cell Cleaning
A salt cell needs regular cleaning to keep your water properly sanitized and crystal clear. We service them twice a year to prevent buildup, ensure consistent chlorine conversion, and keep your pool safe and balanced all season long.
Leak Detection
Our state-of-the-art leak detection equipment pinpoints problems fast — just make sure your pool is clean, clear, and filled to its normal level so we can deliver the most accurate results possible.